<wicket:panel>
<div class="container">
<form wicket:id="uploadForm" role="form">
<div class="form-group">
    <label wicket:for="inputFile"><wicket:message key="select.file">Select File</wicket:message></label>
    <input type="file" wicket:id="inputFile">
    <p class="help-block"><wicket:message key="select.file.import.help">Please select local file to import</wicket:message></p>
  </div>
  <input type="submit" wicket:id="importFile" class="btn btn-primary" value="Submit" wicket:message="value:command.import"/>
</form>
</div>
</wicket:panel>